Implantation bleeding?!?

Taylor • Married 09/22 with 2 beautiful girls Artemis Royale (5) and Iris Calliope (3) TTC number 3

So I’m 8DPO and I took a test this morning it was negative. I had a OBGYN appointment to get tested for PCOS but when I went to leave a urine sample I wiped and there was blood it wasn’t light but also not heavy either. I have a blood disorder so I bleed heavier then normal situation and my cycle typically last 10-14 days. I am no longer getting red blood and it’s just light brown now and barely noticeable. Do you think it’s my period starting, I never had implantation bleeding before with my first two, I felt so defeated today so I’m hoping I’m not out just yet.